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Cause I know nothing about it, and i have nothing on my CV to say I do. So I would like to learn. And only way i can represent that i know shit about shit is to have a stupid piece of paper to say that in my time off, i learnt SQL to a sufficient level that it is usable thereby helping me gain the required SQL does EXIST while being distinctly ON. They will not know how to ask.
ChainBreaker
chez_jay
Who on Earth would this prove knowledge to?
I generally presume if someone can do a SQL NOT EXISTS sanely, or tell me what a DISTINCT ON is going to do, or if they can describe what a data modifying CTE is... that they know SQL.